Calflora, a 501c3 non-profit
Distribution by County   9494    
Eurybia radulina  (A. Gray) G. L. Nesom
Roughleaf aster
Eurybia radulina is a perennial herb that is native to California, and also found elsewhere in western North America.
Record Count by County

Alameda: 38 Marin: 100 Plumas: 33 Sierra: 3
Butte: 52 Mariposa: 3 San Benito: 1 Siskiyou: 12
Contra Costa: 49 Mendocino: 14 San Francisco: 7 Solano: 4
Del Norte: 11 Merced: 1 San Luis Obispo: 30 Sonoma: 56
El Dorado: 10 Monterey: 45 San Mateo: 65 Tehama: 11
Humboldt: 18 Napa: 36 Santa Barbara: 26 Trinity: 4
Lake: 15 Nevada: 5 Santa Clara: 39 Tuolumne: 2
Lassen: 5 Orange: 1 Santa Cruz: 35 Yolo: 1
Madera: 3 Placer: 9 Shasta: 4 Yuba: 7

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2026. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 06/14/2026).